Certain Common Stock of Rock Creek Pharmaceuticals, Inc. are subject to a Lock-Up Agreement Ending on 14-SEP-2015. These Common Stock will be under lockup for 90 days starting from 16-JUN-2015 to 14-SEP-2015.

Details:
The officers and directors of Rock Creek Pharmaceuticals, Inc. have agreed not to offer, sell, contract to sell, pledge or otherwise dispose of, directly or indirectly, any units, warrants, shares of common stock or any other securities convertible into, or exercisable, or exchangeable for, shares of common stock, for a period of 90 days from the date of this prospectus without the prior written consent of Maxim Group LLC.